(diff-sentinel): Take note of diff error return value.

d02b0e30 · Chong Yidong · 27f98b7e · d02b0e30
Commit d02b0e30 authored Nov 24, 2008 by Chong Yidong
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lisp/diff.el lisp/diff.el +3 -1

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--- a/lisp/diff.el
+++ b/lisp/diff.el
@@ -68,7 +68,9 @@ were found."
    (goto-char (point-max))
    (let ((inhibit-read-only t))
      (insert (format "\nDiff finished%s.  %s\n"
-		      (if (equal 0 code) " (no differences)" "")
+		      (cond ((equal 0 code) " (no differences)")
+			    ((equal 2 code) " (diff error)")
+			    (t ""))
 		      (current-time-string))))))

 (defvar diff-old-file nil)